diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 963296d..297cebb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
         php-versions: ['5.3', '5.4', '5.5', '5.6', '7.0']
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
@@ -26,7 +26,7 @@ jobs:
         run: composer self-update --1
 
       - name: Install Composer dependencies
-        uses: "ramsey/composer-install@v2"
+        uses: "ramsey/composer-install@v3"
 
       - name: PHPUnit tests
         run: vendor/bin/phpunit
@@ -37,13 +37,13 @@ jobs:
     strategy:
       matrix:
         operating-system: ['ubuntu-latest']
-        php-versions: ['7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2']
+        php-versions: ['7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3', '8.4']
 
-    continue-on-error: ${{ matrix.php-versions == '8.2' }}
+    continue-on-error: ${{ matrix.php-versions == '8.4' }}
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
@@ -56,13 +56,13 @@ jobs:
       - name: Modernize dependencies
         run: composer require --dev --no-update "phpunit/phpunit:>=4"
 
-      - name: Install Composer dependencies (PHP < 8.2)
-        if: ${{ matrix.php-versions != '8.2' }}
-        uses: "ramsey/composer-install@v2"
+      - name: Install Composer dependencies (PHP < 8.4)
+        if: ${{ matrix.php-versions != '8.4' }}
+        uses: "ramsey/composer-install@v3"
 
-      - name: Install Composer dependencies - ignore-platform-reqs (PHP 8.2)
-        if: ${{ matrix.php-versions == '8.2' }}
-        uses: "ramsey/composer-install@v2"
+      - name: Install Composer dependencies - ignore-platform-reqs (PHP 8.4)
+        if: ${{ matrix.php-versions == '8.4' }}
+        uses: "ramsey/composer-install@v3"
         with:
           composer-options: --ignore-platform-reqs
 
diff --git a/.github/workflows/psalm.yml b/.github/workflows/psalm.yml
index 8493312..85725b5 100644
--- a/.github/workflows/psalm.yml
+++ b/.github/workflows/psalm.yml
@@ -12,7 +12,7 @@ jobs:
         php-versions: ['7.4']
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
@@ -22,7 +22,7 @@ jobs:
           coverage: none
 
       - name: Install Composer dependencies
-        uses: "ramsey/composer-install@v2"
+        uses: "ramsey/composer-install@v3"
         with:
           composer-options: --no-dev